My Toilet Rocks When I Sit on It

With all of the uncertainty life can bring, you want to make sure one thing remains stable and secure, and that is your toilet. A loose toilet may not seem like there is cause for concern, but the truth is, a wobbly toilet can lead to severe problems and potential damage if not taken care of.

If you go and sit down on your toilet and think to yourself, ‘Why does my toilet rock when I sit on it?’ or, ‘Is this something I should be concerned about?’, read on.

Toilet covers

If your toilet rocks when you sit on it, then you need to bring your attention towards the base of your toilet and the bathroom floor. One of the most common reasons why toilets can get wobbly is that the flange bolts become loose, which can happen naturally over time. These are the bolts that secure your toilet flush to the bathroom floor. Since your toilet does not screw into the floor, it screws into a toilet flange or closet flange.

Read on for more valuable information you can use to remedy this problem!

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This vital piece connects the toilet to the drain pipe and secures it to the ground. Sometimes the flange can move over time and end up sitting higher than the floor, which raises the toilet in the center, allowing it to rock slightly from side to side. Your toilet could also wobble if the flange itself is not installed correctly or is damaged.

A damaged flange is usually accompanied by leaking near the base of the toilet and unpleasant poop odors. These are easy ways to tell when your flange is damaged rather than a flange bolt that needs to be tightened. You also want to check for any uneven floor or loose tiles near the base of your toilet that may be causing your toilet to rock when you sit on it.

How Do You Stop a Toilet from Rocking?

To stop your toilet from rocking, you first need to figure out what is causing your toilet to be loose. If the toilet is wobbly because the toilet flange bolts are loose, this is the easiest problem to solve.

All you have to do is locate the flange bolts and tighten them either by hand or an adjustable wrench. Just make sure not to tighten them too much, as this can cause other damages such as cracking the ceramic.

The toilet may also be rocking due to the toilet installation and the floor flange not being installed correctly. This means the flange is not flush with the floor, making your toilet sit slightly above the ground and wobble side to side.

A quick and effective way to solve this problem is by shoving shims under the toilet so it becomes steady, and the gap between the floor and toilet is gone. You can apply a thin bead of caulk around the toilet base to secure and cover the shims as well.

If the toilet is rocking due to a broken toilet flange, then a bit more work will be required. A broken toilet or closet flange is known to come with potential leaking and unwanted odors, so if the problem is urgent, we recommend a professional plumber come in to fix your toilet. However, if you think you can manage the problem yourself, here are some steps to help fix the damaged flange:

Step 1

Checking the toilet flange requires you to drain all the water from your toilet since you have to move it to see the flange. Drain the toilet bowl and toilet tank and turn off your water supply.

Step 2

Remove the flange bolts; if you have trouble finding them, some toilets use decorative covers to hide the bolts.

Step 3

Once you remove the bolts, you will be able to move the toilet and see the flange. Most toilet flanges are made of PVC, steel, or copper, with a wax ring that acts as a seal against leakages.

new toilet installation

Step 4

Determine if the flange is broken or installed incorrectly. From here, you can decide if you think a plumber is needed, or you can buy a new flange. It is recommended to change the wax seal every time you move your toilet, regardless of whether the flange is damaged or not.

Frequently Asked Questions (FAQ)

Why does my toilet move when I sit?

  1. Loose flange bolts or toilet bolts.
  2. Broken toilet flange, which can lead to leaks and unpleasant smells.
  3. Flange was installed incorrectly, leading to a gap between your toilet and floor, allowing it to rock back and forth.
  4. Your floor is not level, or there is damage to your floor resulting in your toilet not being flush to the ground.

How Much Does It Cost to Fix a Wobbly Toilet?

The cost of fixing a wobbly toilet will depend on the reason the toilet is wobbly. If the flange bolts are loose, you can likely fix it yourself with an adjustable wrench which you likely already have in your toolbox.

If the problem requires you to buy caulk and shims, or perhaps a new wax ring for your flange, then it may cost you a bit of money at the hardware store. Fixing a wobbly toilet becomes expensive when the toilet leaks since it can cause potential sewage and water damage to your bathroom floor, and you are forced to hire a plumber.

How Do I Fill the Gap Between My Toilet and the Floor? Step By Step

  1. Locate the gaps and determine how many shims you will need to stop the rocking.
  2. Trim shims to the correct length so they fit snug in the gaps and shove them into place.
  3. Once shims are in place, apply a thin bead of caulk around the toilet base to seal in and hide shims.
  4. Allow the caulk to cure and dry before sitting on the toilet seat, and the gap between your toilet and floor is now gone!

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